I can think of several times when I have a question about a certain topic, and I'm sure it's been discussed before, but I don't have time to search through the thousands of threads. This would save the mods and other readers a considerable amount of time from having to answer the same questions over and over again.

If it's not a current capabilibility to perform a search, would you please consider adding it as a capability? It would make RC that much more useful and user friendly.